查询指定交易账户的全部持仓信息
[{'account_id': 'b56fbbc6-3d2a-11ef-a9f3-3417eb91badb', 
  'account_name': 'b56fbbc6-3d2a-11ef-a9f3-3417eb91badb', 
  'symbol': 'SHFE.rb2410', 
  'side': 1, 
  'volume': 1, 
  'volume_today': 1, 
  'vwap': 3507.3507, 
  'amount': 35073.507, 
  'price': 3507.0, 
  'fpnl': -3.506999999999607, 
  'cost': 2455.14549, 
  'available': 1, 
  'available_today': 1, 
  'created_at': datetime.datetime(2024, 7, 10, 9, 3, tzinfo=datetime.timezone(datetime.timedelta(seconds=28800), 'Asia/Shanghai')), 
  'updated_at': datetime.datetime(2024, 7, 10, 9, 3, tzinfo=datetime.timezone(datetime.timedelta(seconds=28800), 'Asia/Shanghai')), 
  'vwap_diluted': 3507.3507, 
  'market_value': 35070.0, 
  'available_now': 1, 
  'vwap_open': 3507.3507, 
  'fpnl_open': -3.506999999999607, 
  'fpnl_diluted': -3.506999999999607, 
  'channel_id': '', 
  'order_frozen': 0, 
  'order_frozen_today': 0, 
  'last_price': 0.0, 'last_volume': 0, 
  'last_inout': 0, 'change_reason': 0, 
  'change_event_id': '', 'has_dividend': 0, 
  'covered_flag': 0, 
  'properties': {}, 
  'credit_position_sellable_volume': 0}]